Technical reasons for 150 HP Stalling

Macattack

Seaman
Joined
Mar 22, 2003
Messages
62
I've read the posts on engines stalling when shifting and have read about replacing bulb, rebuilding pumps and carbs. Whats the reason(s) for the stall. My motor runs fine at higher speeds. Thanks Bill Mc
 

glennrow

Petty Officer 3rd Class
Joined
Jul 10, 2006
Messages
89
Re: Technical reasons for 150 HP Stalling

Macattack said:
I've read the posts on engines stalling when shifting and have read about replacing bulb, rebuilding pumps and carbs. Whats the reason(s) for the stall. My motor runs fine at higher speeds. Thanks Bill Mc

could be dirty idle jet..there is a similar post in here..i would suggest cleaning the carbs using the sea form deep creep...i was having the same problem with my 91 force 120 . sprayed the stuff into the carbs( while engine running ) until it quit running, let it sit for about 2 hours; then started it up again and ran it for a while.. ( plan of replacing or cleaning your plugs ) seemed to do the trick..will be smoker then all heck and will stink the same but ran like it did many years ago. will now be part of my annual maint. routine...good luck
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,753
Re: Technical reasons for 150 HP Stalling

Could be low compression caused by stuck rings.
A decarb will help with this.

Could also be weak spark on one cylinder.

Or dirty carbs, or low idle speed.
 
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